| NATO Countries | 0 | - | 4.98 | 275,615 |
| EU Countries Quiz | 0 | - | 4.99 | 269,824 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,903,689 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,420 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,841 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,178 |
| Top Five Countries by Religion | 0 | - | 4.93 | 169,006 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,725 |
| Countries with NO Military | 0 | - | 4.97 | 61,149 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,893 |
| Landlocked Countries | 0 | - | 4.99 | 413,419 |
| OPEC Countries | 0 | - | 4.74 | 84,813 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,415 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,239 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,718 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,107 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,900 |
| Buddhist Countries | 0 | - | 4.96 | 142,926 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,800 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,049 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,714,926 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,500 |
| Himalayan Countries | 0 | - | 4.95 | 135,281 |
| Andean Countries | 0 | - | 4.94 | 82,791 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,193 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,142 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,859 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,567 |
| Danube Countries | 0 | - | 4.97 | 71,062 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,730 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,517 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,426 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,350 |
| European Landlocked Countries | 0 | - | 4.99 | 145,731 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,171 |
| Countries with the Most Species | 0 | - | 4.99 | 95,234 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,311 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,193 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,360 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,948 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,561 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,936 |
| Countries in the Alps | 0 | - | 4.86 | 116,787 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,537 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,222 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,991 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,404 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,131 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,978 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,551 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,736 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,186 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,036 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,189 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,031 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,431 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,722 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,735 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,020 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,621 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,246 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,750 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,180 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,599 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,590 |
| Largest Countries By Category | 0 | - | 4.97 | 156,720 |
| Countries by Countries | 0 | - | 4.96 | 62,242 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,739 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,639 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,057 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,741 |
| Island Countries | 0 | - | 4.99 | 707,543 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,226 |
| Northernmost Countries | 0 | - | 4.99 | 357,625 |
| Countries of South America | 0 | - | 5.00 | 914,387 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,063 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,847,655 |
| "Land" Countries | 0 | - | 4.98 | 333,594 |
| Countries that Start with A | 0 | - | 4.97 | 2,146,353 |
| Countries that Start with B | 0 | - | 4.95 | 2,279,475 |
| Countries that Start with C | 0 | - | 4.96 | 1,809,975 |
| Countries that Start with D | 0 | - | 4.96 | 701,309 |
| Countries that Start with E | 0 | - | 4.95 | 1,367,266 |
| Countries that Start with G | 0 | - | 4.97 | 1,492,507 |
| Countries that Start with H | 0 | - | 4.96 | 597,763 |
| Countries that Start with I | 0 | - | 4.92 | 1,280,073 |
| Countries that Start with J | 0 | - | 4.98 | 595,839 |
| Countries that Start with K | 0 | - | 4.97 | 809,239 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,664 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,535 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,351 |
| Countries that Start with S | 0 | - | 4.98 | 1,744,240 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,058 |
| Countries that Start with U | 0 | - | 4.97 | 899,810 |
| Countries that Start with V | 0 | - | 4.98 | 604,976 |
| Countries that Start with F | 0 | - | 4.83 | 612,043 |
| Countries that Start with M | 0 | - | 4.97 | 1,373,101 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,000 |
| Orthodox Countries | 0 | - | 4.91 | 130,357 |
| Richest Island Countries | 0 | - | 4.84 | 99,494 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,361,749 |
| Monarchies of Europe | 0 | - | 4.90 | 97,294 |
| Monarchies of Asia | 0 | - | 4.97 | 70,590 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,404 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,427 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,251 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,140 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,470 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,535 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,627 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,037 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 102,922 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 83,692 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,572 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 193,881 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,435 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,072 |
| Countries with Megacities | 0 | - | 4.99 | 246,680 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,002 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,857 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,428 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,787 |
| Countries by Official Language | 0 | - | 4.95 | 192,731 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,069 |
| Countries in their Native Language | 0 | - | 4.99 | 196,594 |
| Independence from Whom | 0 | - | 4.99 | 209,634 |
| Subdivisions by Country | 0 | - | 4.86 | 50,060 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,711 |
| Megadiverse Countries | 0 | - | 4.97 | 133,883 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,758 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,910 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,417 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,853 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,628 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,986 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,885 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,130 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,208 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,738 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,529 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,404 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,480 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,490 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,065 |
| Richest Countries A-Z | 0 | - | 4.92 | 101,814 |
| Large Countries with Small Economies | 0 | - | 4.94 | 80,307 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,310 |
| Communist Countries in History | 0 | - | 4.63 | 492,436 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,307 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,966 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,925 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,687 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,833 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,040 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,253 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,931 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,323 |
| Widest Countries East to West | 0 | - | 4.92 | 128,592 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,215 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,183 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,560 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,676 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,610 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,023 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,048 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,571 |
| Countries with Double Letters | 0 | - | 4.97 | 93,347 |
| Countries that End in N | 0 | - | 4.94 | 156,554 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,639 |
| Countries with Six Letters | 0 | - | 4.93 | 210,312 |
| Countries with W | 0 | - | 4.97 | 158,200 |
| Countries with Z | 0 | - | 4.98 | 287,825 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,520 |
| Countries That End in U | 0 | - | 4.95 | 119,502 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,503 |
| Countries that End in O | 0 | - | 4.92 | 158,534 |
| Countries that End in R | 0 | - | 4.87 | 118,257 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,851 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,979 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,299 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,470 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,986 |
| Countries That End in Y | 0 | - | 4.90 | 185,190 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,337 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,646 |
| Countries that End in I | 0 | - | 4.94 | 134,397 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,148 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,181 |
| Countries That End in NIA | 0 | - | 4.92 | 108,987 |
| Countries That End in BIA | 0 | - | 4.92 | 147,689 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,041 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,469 |
| Countries That End in RIA | 0 | - | 4.93 | 126,063 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 109,983 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,148 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,501 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,876 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,336 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,917 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,097 |
